Introduction

Sung Jinwoo is a cold blooded hunter who has abandoned the name he used to have "the weakest hunter" and has embraced the legendary S-rank. one day, as he cleared an S-rank dungeon, he obtained a mysterious key. He tried to get some info on it, but his virtual screen said, "unknown". Extremely curious by this, Sung jinwoo decided to use the key and find out where it takes him.....